Or regulating the flow of



ilnteii (gieten @tutti Glipiirn.

Letters Patent 106,658, elated August 23, i870.

IMPROVEMNT IN APPARATUS FOR G-A'l'J'G-ING OR REGULATING- THE FLOW OF WATER OR OTHER FLUIDS.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern a Be it k: own that I, EDME AUGUSTIN UHAMEROY, ofPars, in the Empire ot' France, have invented new and usei'ul Improvements in Means and Apparatus f'or Gauging or Regulating the Flow of` Water or other Liquids; and I' do hereby declare the following to be a true and lawihl description ot' the same, ref'- ereuce being had to the accompanying drawing, that is to say- 4 My improved system ofgauging is intended torem Gauyt'ng Under Pressure.

' i (See the vertical section, Figure 1, and cross-section,

Figure 2.)

U, east-iron box, concave at its upper part. d. I), cover of'the boxihwith which it is connected by a flanged joint. l

E, entrance for the water. F, exit of' the water. G, distributor, perforated at the center with an oriylice corresponding with the entrance of the water.

H H, square or rectangular orifices, pierced Vat'the hase o1' the distributer G.

Lrspindle, passing over the orifice of distribution, which acts as a rcgulatorof' the iiow of the water.

J, diaphragm, in copper or India rubber, forming a flexible division between the box C andv the cover D.

K K, metallicrdisks, acting as weights, joined together by ythe screw and nuts on the spindle I. lhe flexible diaphragm J is inolosed between these two metallic disks.

L, orilice ofthe gauge, from which there is an invariable fiow, 1

Action of the Apparatus.

The apparatus is attached to the supply-pipes by the entry4 E and the exit y F. The `water passing through the distributer G will flow through the orifices H H, then through 'the oritce of the gauge L, but at the same time it will lprerss upward .upon the surf'ace ot the disks K K, tof'orm au equilibrium to their weight.

When this m'essure'gets greater than this weight, the disks K, by reason of the tiexibility of' the diaphragm J, will rise vertically,producing a diminution ot' the iiow of' water through the lorifices H H, until theinslantwhen the pressure ot the water will equalize the weight ot the disks K. Consequently the differ ence of' pressure or the loss of )'Jizometl'lcal head be` tween the top and bottom 0f' the disks K, that is to say, between the high and low pressure at the orifice 'of the gauge L will be invariable, thus causing the flow to be constant also.

This ,hydraulic phenomenon possesses great sensi-l tiveness. A change of pressure of a few centmetros only will sufiicc for an exact meter, able to be affixed to apipe at any point.

This arrangement of' meter under pressure applied to the overflows of" canals for the supply ot' mills, or for anyl other purpose,l\\"ll have the same effect, by supplying. (whatever may be the variation of' the high and low levels) the same quantity of' water. In this case the apparatus may be modified in two ways.

The boit C D, provided with fhe inlet- E and outlets F, colnbined with .the distributer G, arranged with orifices H, spindle 4I, and weighted diaphragm J substantially as and f'or the purpose specified.

In testimony whereof 1 have signed my name to this specification before two subscribing witnesses.

l A. oHAMnaoY.

Witnesses:

O. LAFOND, J i U. ZUsT. 

